1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <fstream>
11 
12 // template <class charT, class traits = char_traits<charT> >
13 // class basic_ifstream
14 
15 // void close();
16 
17 #include <fstream>
18 #include <cassert>
19 
main()20 int main()
21 {
22     {
23         std::ifstream fs;
24         assert(!fs.is_open());
25         fs.open("test.dat");
26         assert(fs.is_open());
27         fs.close();
28         assert(!fs.is_open());
29     }
30     {
31         std::wifstream fs;
32         assert(!fs.is_open());
33         fs.open("test.dat");
34         assert(fs.is_open());
35         fs.close();
36         assert(!fs.is_open());
37     }
38 }
39